Increasing the open circuit voltage of bulk-heterojunction solar cells by raising the LUMO level of the acceptor

被引：361
|
作者：
Kooistra, Floris B.
Knol, Joop
Kastenberg, Fredrik
Popescu, Lacramioara M.
Verhees, Wiljan J. H.
Kroon, Jan M.
Hummelen, Jan C.
机构：
[1] Univ Groningen, Mat Sci CtrPlus, NL-9747 AG Groningen, Netherlands
[2] Solar Energy, Energy Res Ctr Netherlands ECN, NL-1755 ZG Petten, Netherlands
来源：
ORGANIC LETTERS | 2007年 / 9卷 / 04期
关键词：
D O I：
10.1021/ol062666p
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
We report the synthesis, characterization, and electrochemical properties of ten new fullerene derivatives for usage in organic solar cells. The phenyl ring of PCBM was substituted with electron-donating and electron-withdrawing substituents to study their influence on the LUMO level of the parent fullerene. We varied the LUMO level over a range of 86 mV and show a small but significant change of the open circuit voltage upon application in MDMO-PPV:methanofullerene bulk-heterojunction photovoltaic cells.
引用
收藏
页码：551 / 554
页数：4
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